:root {
  color-scheme: light;
  --paper: #fbfaf7;
  --white: #fff;
  --fog: #f4f3f0;
  --mist: #ecebea;
  --ink: #17191c;
  --slate: #70747b;
  --line: #deddd9;
  --peach: #fbe1d1;
  --sienna: #5d2a1a;
  --green: #55705c;
  --serif: "Source Serif 4", ui-serif, Georgia, serif;
  --sans: "Inter", ui-sans-serif, system-ui, sans-serif;
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--paper); color: var(--ink); font-family: var(--sans); margin: 0; overflow-x: hidden; }
a { color: inherit; }
button { font: inherit; }
::selection { background: var(--peach); color: var(--sienna); }
.shell { margin-inline: auto; max-width: 1328px; padding-inline: clamp(22px, 4vw, 64px); width: 100%; }
.skip-link { background: var(--ink); color: var(--white); left: 16px; padding: 10px 14px; position: fixed; top: -60px; z-index: 100; }
.skip-link:focus { top: 16px; }

.site-header { background: rgba(251,250,247,.88); border-bottom: 1px solid rgba(23,25,28,.07); backdrop-filter: blur(18px); left: 0; position: fixed; right: 0; top: 0; z-index: 20; }
.nav { align-items: center; display: grid; grid-template-columns: 1fr auto 1fr; height: 78px; }
.brand { align-items: center; display: inline-flex; font-family: var(--serif); font-size: 21px; gap: 9px; text-decoration: none; width: max-content; }
.brand svg { fill: none; height: 28px; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.4; width: 28px; }
.brand-logo { display: block; height: 22px; object-fit: contain; transition: filter .2s ease; width: 122px; }
.nav-links { display: flex; gap: 34px; }
.nav-links a { color: #595d63; font-size: 13px; text-decoration: none; transition: color .2s ease; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { justify-self: end; }
.menu-button { display: none; }

.button { align-items: center; border: 1px solid transparent; border-radius: 999px; display: inline-flex; font-size: 13px; font-weight: 500; gap: 28px; justify-content: space-between; min-height: 50px; padding: 0 22px; text-decoration: none; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-dark { background: var(--ink); color: var(--white); }
.button-dark:hover { background: #303236; }
.button-small { min-height: 42px; padding-inline: 18px; }
.text-link { align-items: center; display: inline-flex; font-size: 13px; gap: 12px; text-decoration: none; }
.text-link::after { background: var(--ink); content: ""; height: 1px; opacity: .35; position: absolute; transform: translateY(14px); transition: width .2s ease; width: 0; }
.text-link:hover::after { width: 82px; }

.hero { min-height: 100svh; padding-bottom: 78px; padding-top: 156px; text-align: center; }
.hero-copy { margin: 0 auto; max-width: 1040px; position: relative; z-index: 2; }
.eyebrow, .section-label { color: var(--slate); font-size: 10px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow { align-items: center; display: flex; gap: 9px; justify-content: center; margin: 0 0 30px; }
.eyebrow span { background: var(--sienna); border-radius: 50%; height: 6px; width: 6px; }
.hero h1, .section-intro h2, .hypothesis h2, .process-heading h2, .pilot h2 { font-family: var(--serif); font-weight: 400; letter-spacing: -.046em; }
.hero h1 { font-size: clamp(59px, 7.4vw, 102px); line-height: .94; margin: 0; }
.hero h1 em { color: #74716d; font-style: normal; }
.hero-lede { color: #5f6267; font-size: clamp(16px, 1.5vw, 20px); line-height: 1.6; margin: 30px auto 0; max-width: 650px; }
.hero-actions { align-items: center; display: flex; gap: 28px; justify-content: center; margin-top: 34px; }

.hero-stage { height: 500px; margin: 24px auto 0; max-width: 1120px; position: relative; }
.hero-stage::before { background-image: radial-gradient(circle, #c9c7c1 1px, transparent 1px); background-size: 22px 22px; content: ""; inset: 60px 4% 40px; mask-image: radial-gradient(ellipse at center, #000 25%, transparent 70%); opacity: .55; position: absolute; }
.artifact { background: rgba(255,255,255,.95); border: 1px solid rgba(23,25,28,.12); border-radius: 20px; box-shadow: 0 30px 70px rgba(31,28,24,.09); position: absolute; text-align: left; }
.artifact-bar { align-items: center; border-bottom: 1px solid var(--line); display: flex; font-size: 9px; justify-content: space-between; letter-spacing: .04em; padding: 13px 16px; text-transform: uppercase; }
.artifact-bar strong { align-items: center; color: var(--sienna); display: flex; font-size: 8px; font-weight: 600; gap: 6px; }
.artifact-bar i { background: #bd765d; border-radius: 50%; display: inline-block; height: 5px; width: 5px; }
.artifact-bar .approved { color: var(--green); }
.artifact-bar .approved i { background: var(--green); }
.drift-card { height: 220px; left: 1%; top: 118px; transform: rotate(-3.5deg); width: 370px; z-index: 2; }
.screen-row { display: grid; gap: 10px; grid-template-columns: repeat(3, 1fr); padding: 18px 17px 12px; }
.mini-screen { background: var(--fog); border: 1px solid var(--line); display: grid; gap: 5px; grid-template-columns: repeat(2, 1fr); height: 96px; padding: 9px; }
.mini-screen b { background: #a8aaa8; display: block; grid-column: 1/-1; height: 5px; width: 55%; }
.mini-screen span { background: #dededb; display: block; }
.mini-screen button { background: var(--ink); border: 0; grid-column: 1/-1; height: 8px; width: 66%; }
.mini-screen.variant-two { border-radius: 12px; }
.mini-screen.variant-two b { background: #7e736e; width: 78%; }
.mini-screen.variant-two button { background: #8e5d4d; border-radius: 8px; justify-self: end; width: 50%; }
.mini-screen.variant-three { font-family: var(--serif); }
.mini-screen.variant-three button { background: #656970; width: 100%; }
.drift-card > p { color: var(--slate); font-size: 9px; margin: 0 18px; }
.system-card { height: 260px; left: 50%; top: 74px; transform: translateX(-50%); width: 380px; z-index: 4; }
.component-preview { align-items: center; background: var(--fog); display: flex; height: 142px; justify-content: center; }
.component-preview button { background: var(--ink); border: 0; border-radius: 999px; color: white; font-size: 11px; padding: 14px 18px; }
.component-preview button span { margin-left: 25px; }
.token-row { display: grid; font-size: 8px; grid-template-columns: repeat(3, 1fr); padding: 13px 15px; }
.token-row span { color: var(--slate); display: flex; flex-direction: column; gap: 3px; }
.token-row b { color: var(--ink); font-weight: 500; }
.agent-card { align-items: center; display: grid; gap: 12px; grid-template-columns: 36px 1fr auto; padding: 14px; right: 1%; top: 150px; transform: rotate(3.5deg); width: 328px; z-index: 3; }
.agent-icon { align-items: center; background: var(--ink); border-radius: 10px; color: white; display: flex; font-family: var(--serif); height: 36px; justify-content: center; width: 36px; }
.agent-card small { color: var(--slate); font-size: 8px; text-transform: uppercase; }
.agent-card p { font-size: 10px; line-height: 1.45; margin: 4px 0 0; }
.check { align-items: center; background: #e7eee8; border-radius: 50%; color: var(--green); display: flex; font-size: 10px; height: 21px; justify-content: center; width: 21px; }
.stage-caption { align-items: center; bottom: 52px; color: var(--slate); display: flex; font-size: 9px; gap: 12px; justify-content: center; left: 0; letter-spacing: .12em; position: absolute; right: 0; text-transform: uppercase; }
.stage-caption i { background: #b9b8b3; height: 1px; width: 48px; }
.stage-caption strong { color: var(--ink); font-weight: 600; }

.section-fog { background: var(--fog); }
.solution { padding: clamp(100px, 12vw, 170px) 0; }
.section-intro { display: grid; gap: 35px; grid-template-columns: .38fr 1.25fr .72fr; }
.section-intro h2 { font-size: clamp(50px, 6vw, 82px); line-height: .98; margin: 0; }
.section-intro h2 span { color: #797672; }
.section-intro > p:last-child { align-self: end; color: #62656a; font-size: 15px; line-height: 1.7; margin: 0; max-width: 420px; }
.system-demo { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); display: grid; grid-template-columns: 64px 1fr 230px; height: 510px; margin-top: 82px; overflow: hidden; box-shadow: 0 32px 80px rgba(43,39,34,.07); }
.system-sidebar { align-items: center; border-right: 1px solid var(--line); display: flex; flex-direction: column; gap: 25px; padding-top: 20px; }
.system-sidebar i { background: #c7c6c1; border-radius: 4px; height: 12px; width: 12px; }
.system-sidebar i:nth-of-type(2) { background: var(--ink); }
.system-logo { align-items: center; background: var(--ink); border-radius: 8px; color: var(--white); display: flex; font-family: var(--serif); height: 32px; justify-content: center; margin-bottom: 18px; width: 32px; }
.system-canvas { min-width: 0; }
.canvas-top { align-items: center; border-bottom: 1px solid var(--line); color: var(--slate); display: flex; font-size: 9px; justify-content: space-between; padding: 20px 24px; text-transform: uppercase; }
.canvas-top span:last-child { color: var(--green); }
.canvas-body { padding: 48px clamp(24px, 4vw, 64px); }
.canvas-title small { color: var(--slate); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }
.canvas-title h3 { font-family: var(--serif); font-size: clamp(31px, 3.5vw, 49px); font-weight: 400; letter-spacing: -.04em; line-height: 1.03; margin: 13px 0 34px; }
.swatches { display: grid; gap: 10px; grid-template-columns: repeat(3, 1fr); }
.swatch { align-items: flex-end; border: 1px solid var(--line); display: flex; flex-direction: column; height: 62px; justify-content: flex-end; padding: 8px; }
.swatch b, .swatch i { font-size: 8px; font-style: normal; font-weight: 500; }
.swatch i { opacity: .65; }
.swatch.ink { background: var(--ink); color: white; }
.swatch.paper { background: var(--paper); }
.swatch.peach { background: var(--peach); color: var(--sienna); }
.component-line { align-items: center; border-top: 1px solid var(--line); display: grid; gap: 20px; grid-template-columns: auto auto 1fr; margin-top: 38px; padding-top: 25px; }
.component-line > span { color: var(--slate); font-size: 9px; text-transform: uppercase; }
.component-line button { background: var(--ink); border: 0; border-radius: 999px; color: white; font-size: 9px; padding: 12px 14px; }
.component-line button b { margin-left: 19px; }
.component-line code { background: var(--fog); border-radius: 8px; color: #666970; font-size: 9px; padding: 12px; }
.system-inspector { border-left: 1px solid var(--line); padding: 22px; }
.system-inspector > p { font-size: 10px; font-weight: 600; margin: 0 0 32px; }
.system-inspector dl { margin: 0; }
.system-inspector dl div { border-top: 1px solid var(--line); padding: 17px 0; }
.system-inspector dt { color: var(--slate); font-size: 9px; }
.system-inspector dd { font-size: 11px; margin: 5px 0 0; }
.inspector-status { align-items: center; border-top: 1px solid var(--line); color: var(--green); display: flex; font-size: 9px; gap: 7px; margin-top: 58px; padding-top: 18px; }
.inspector-status i { background: var(--green); border-radius: 50%; height: 5px; width: 5px; }
.flow { align-items: center; display: grid; gap: 18px; grid-template-columns: 1fr auto 1fr auto 1fr; margin: 56px auto 0; max-width: 980px; }
.flow div { text-align: center; }
.flow small { color: var(--slate); display: block; font-size: 8px; letter-spacing: .1em; margin-bottom: 8px; text-transform: uppercase; }
.flow strong { font-family: var(--serif); font-size: 20px; font-weight: 400; }
.flow > span { color: #aaa9a5; }

.hypothesis { background: var(--peach); border-radius: var(--radius); color: var(--sienna); display: grid; gap: clamp(50px, 8vw, 120px); grid-template-columns: 1.2fr .8fr; margin-bottom: clamp(120px, 14vw, 190px); margin-top: clamp(90px, 10vw, 140px); padding: clamp(42px, 6vw, 80px); }
.hypothesis .section-label { color: #885c4d; margin: 0 0 28px; }
.hypothesis h2 { font-size: clamp(40px, 5vw, 70px); line-height: 1; margin: 0; }
.hypothesis h2 span { opacity: .62; }
.hypothesis-copy { border-left: 1px solid rgba(93,42,26,.2); padding-left: clamp(24px, 4vw, 54px); }
.hypothesis-copy > p { font-family: var(--serif); font-size: 20px; line-height: 1.45; margin: 0 0 28px; }
.measure-list { display: grid; grid-template-columns: 1fr 1fr; }
.measure-list span { border-top: 1px solid rgba(93,42,26,.18); font-size: 10px; line-height: 1.35; padding: 13px 8px 13px 0; }
.hypothesis-copy small { display: block; font-size: 8px; letter-spacing: .1em; margin-top: 22px; text-transform: uppercase; }

.deliverables { padding-bottom: clamp(110px, 14vw, 190px); }
.section-intro.compact { align-items: end; border-top: 1px solid var(--line); grid-template-columns: .38fr 1.97fr; padding: 34px 0 62px; }
.section-intro.compact h2 { font-size: clamp(48px, 5.5vw, 76px); }
.deliverable-grid { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
.deliverable-card { background: var(--fog); border-radius: var(--radius); min-height: 520px; padding: 20px; position: relative; }
.card-index { color: var(--slate); font-size: 9px; position: absolute; right: 22px; top: 22px; }
.foundation-art, .storybook-art, .rules-art { background: white; border: 1px solid var(--line); border-radius: 16px; height: 270px; margin-bottom: 34px; overflow: hidden; }
.foundation-art { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; padding: 35px; }
.type-sample { align-items: center; border-bottom: 1px solid var(--line); display: flex; font-family: var(--serif); font-size: 62px; grid-column: 1/-1; }
.color-sample, .spacing-sample { display: flex; gap: 5px; }
.color-sample i { border-radius: 50%; height: 22px; width: 22px; }
.color-sample i:nth-child(1) { background: var(--ink); }
.color-sample i:nth-child(2) { background: var(--peach); }
.color-sample i:nth-child(3) { background: var(--mist); }
.spacing-sample { align-items: flex-end; justify-content: flex-end; }
.spacing-sample i { background: #b9bab7; width: 8px; }
.spacing-sample i:nth-child(1) { height: 18px; }.spacing-sample i:nth-child(2) { height: 30px; }.spacing-sample i:nth-child(3) { height: 44px; }
.storybook-art { display: grid; grid-template-columns: 55px 1fr; }
.story-rail { border-right: 1px solid var(--line); display: flex; flex-direction: column; gap: 22px; padding-top: 32px; }
.story-rail i { background: #c5c5c2; height: 6px; margin: 0 auto; width: 17px; }
.story-rail i:nth-child(2) { background: var(--ink); }
.story-canvas { align-items: center; background-image: radial-gradient(circle,#ddd 1px,transparent 1px); background-size: 16px 16px; display: flex; flex-direction: column; justify-content: center; }
.story-canvas button { background: var(--ink); border: 0; border-radius: 999px; color: white; font-size: 9px; padding: 13px 17px; }
.story-canvas span { color: var(--slate); font-size: 8px; margin-top: 13px; }
.rules-art { display: flex; flex-direction: column; justify-content: center; padding: 24px; }
.rules-art div { align-items: center; border-top: 1px solid var(--line); display: grid; grid-template-columns: 30px 1fr auto; padding: 18px 0; }
.rules-art div:last-child { border-bottom: 1px solid var(--line); }
.rules-art span { color: var(--slate); font-size: 8px; }.rules-art b { font-size: 10px; font-weight: 500; }.rules-art i { color: var(--green); font-size: 10px; font-style: normal; }
.card-label { color: var(--slate); font-size: 9px !important; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }
.deliverable-card h3 { font-family: var(--serif); font-size: clamp(26px, 2.3vw, 34px); font-weight: 400; letter-spacing: -.035em; margin: 0 0 12px; }
.deliverable-card > p:last-child { color: var(--slate); font-size: 13px; line-height: 1.55; margin: 0; }

.process { padding: clamp(100px, 12vw, 170px) 0; }
.process-grid { display: grid; gap: 11vw; grid-template-columns: .8fr 1.2fr; }
.process-heading h2 { font-size: clamp(50px, 5vw, 72px); line-height: 1; margin: 30px 0; }
.process-heading > p:last-child { color: var(--slate); font-size: 14px; }
.process-list { list-style: none; margin: 0; padding: 0; }
.process-list li { align-items: center; border-top: 1px solid #d5d4d0; display: grid; grid-template-columns: 44px 1fr auto; padding: 25px 0; }
.process-list li:last-child { border-bottom: 1px solid #d5d4d0; }
.process-list li > span { color: var(--slate); font-size: 9px; }
.process-list h3 { font-family: var(--serif); font-size: 27px; font-weight: 400; margin: 0 0 4px; }
.process-list p { color: var(--slate); font-size: 11px; margin: 0; }
.process-list i { color: #999a97; font-size: 17px; font-style: normal; }

.proof { padding-bottom: clamp(120px, 14vw, 190px); padding-top: clamp(110px, 13vw, 180px); }
.proof-grid { display: grid; gap: 18px; grid-template-columns: .82fr 1.18fr; }
.proof-feature, .experience-card { border-radius: var(--radius); min-height: 390px; padding: clamp(30px, 4vw, 54px); position: relative; }
.proof-feature { background: var(--ink); color: white; }
.proof-feature .card-label { color: #aaaeb5; }
.proof-feature h3, .experience-card h3 { font-family: var(--serif); font-size: clamp(42px, 5vw, 66px); font-weight: 400; letter-spacing: -.04em; line-height: 1; margin: 62px 0 20px; }
.proof-feature > p:not(.card-label), .experience-card > p:not(.card-label) { color: #aeb0b5; font-size: 13px; }
.proof-feature > span { bottom: 40px; color: #74777d; font-size: 10px; position: absolute; right: 42px; }
.experience-card { background: var(--fog); }
.experience-card h3 { font-size: clamp(32px, 3.7vw, 50px); max-width: 700px; }
.experience-card > p:not(.card-label) { color: var(--slate); }

.pilot { padding-bottom: clamp(90px, 10vw, 140px); }
.pilot-card { border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(40px, 7vw, 88px); }
.pilot-top { align-items: center; display: flex; justify-content: space-between; }
.availability { align-items: center; display: flex; gap: 6px; }
.availability i { border: 1px solid #a9aaa7; height: 8px; width: 28px; }
.availability i.filled { background: var(--ink); border-color: var(--ink); }
.availability span { color: var(--slate); font-size: 9px; margin-left: 8px; text-transform: uppercase; }
.pilot h2 { font-size: clamp(58px, 7vw, 94px); line-height: .95; margin: 72px 0; }
.pilot h2 span { color: #77746f; }
.pilot-bottom { align-items: center; display: grid; gap: 50px; grid-template-columns: 1fr auto; }
.pilot-bottom > p { color: var(--slate); font-size: 16px; line-height: 1.6; margin: 0; max-width: 530px; }
.pilot-bottom > div { align-items: center; display: flex; gap: 28px; }
.pilot-card > small { color: #92938f; display: block; font-size: 9px; margin-top: 42px; }

.footer { align-items: center; border-top: 1px solid var(--line); display: flex; justify-content: space-between; min-height: 145px; }
.footer > div { color: var(--slate); display: flex; font-size: 9px; gap: 30px; letter-spacing: .05em; text-transform: uppercase; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s cubic-bezier(.2,.7,.2,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Scroll-scrub video hero supplied for the home-page opening. */
.video-hero { background: #05070d; height: 100dvh; overflow: hidden; position: relative; touch-action: none; width: 100%; }
.video-hero-media { height: 100%; inset: 0; object-fit: cover; opacity: 0; pointer-events: none; position: absolute; transform-origin: center; transition: opacity .6s ease; width: 100%; will-change: transform; }
.video-hero-media.ready { opacity: 1; }
.video-hero-overlay { background: linear-gradient(180deg,rgba(5,7,13,.35),rgba(5,7,13,0) 30%,rgba(5,7,13,.15) 70%,rgba(5,7,13,.55)); inset: 0; pointer-events: none; position: absolute; }
.video-hero-title { align-items: center; display: flex; flex-direction: column; gap: clamp(24px,3vw,36px); inset: 0; justify-content: center; padding: 0 6%; pointer-events: none; position: absolute; text-align: center; will-change: transform,filter,opacity; }
.video-hero-title h1 { color: #f2f4f8; display: inline-block; font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif; font-size: clamp(30px,7vw,96px); font-weight: 800; letter-spacing: -.02em; line-height: 1; margin: 0; text-shadow: 0 4px 30px rgba(0,0,0,.5); }
.video-hero-cta { align-items: center; backdrop-filter: blur(12px); background: rgba(242,244,248,.94); border: 1px solid rgba(255,255,255,.7); border-radius: 999px; color: #05070d; display: inline-flex; font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif; font-size: 13px; font-weight: 600; gap: 30px; min-height: 50px; padding: 0 22px; pointer-events: auto; text-decoration: none; transition: background .2s ease,transform .2s ease; }
.video-hero-cta:hover { background: #fff; transform: translateY(-2px); }
.video-hero-cta:focus-visible { outline: 2px solid white; outline-offset: 4px; }
.video-hero-hint { align-items: center; bottom: clamp(20px,6vh,48px); color: rgba(240,244,248,.75); display: flex; flex-direction: column; font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif; font-size: clamp(10px,1.4vw,12px); font-weight: 600; gap: 8px; left: 50%; letter-spacing: .3em; pointer-events: none; position: absolute; transform: translateX(-50%); transition: opacity .4s ease; }
.video-hero-hint svg { animation: metro-hero-bounce 1.6s ease-in-out infinite; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.5; }
@keyframes metro-hero-bounce { 0%,100% { opacity:.5; transform:translateY(0) } 50% { opacity:1; transform:translateY(5px) } }
.video-hero-progress { background: rgba(255,255,255,.12); bottom: 0; height: 2px; left: 0; position: absolute; right: 0; }
.video-hero-progress i { background: linear-gradient(90deg,rgba(255,255,255,.5),rgba(255,255,255,.95)); display: block; height: 100%; transform: scaleX(0); transform-origin: left center; width: 100%; }
.video-hero-signature { bottom: clamp(10px,2vw,18px); color: rgba(220,224,232,.6); font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif; font-size: clamp(11px,1.4vw,13px); font-weight: 500; letter-spacing: .01em; position: absolute; right: clamp(12px,2.5vw,24px); z-index: 2; }
.video-hero-signature a { color: inherit; text-decoration: none; transition: color .2s ease; }
.video-hero-signature a:hover { color: #f2f4f8; }
body.video-locked .site-header { background: linear-gradient(180deg,rgba(5,7,13,.48),transparent); border-color: transparent; color: white; }
body.video-locked .brand-logo { filter: invert(1); }
body.video-locked .nav-links a { color: rgba(255,255,255,.72); }
body.video-locked .nav-links a:hover { color: white; }
body.video-locked .button-dark { background: white; color: #05070d; }
body.video-locked .menu-button span { background: white; }

@media (max-width: 1050px) {
  .drift-card { left: 0; width: 330px; }
  .system-card { width: 350px; }
  .agent-card { right: 0; width: 290px; }
  .system-demo { grid-template-columns: 54px 1fr 190px; }
  .canvas-body { padding-inline: 30px; }
}

@media (max-width: 880px) {
  .nav { grid-template-columns: 1fr auto; }
  .nav-links { background: var(--paper); border-bottom: 1px solid var(--line); display: none; flex-direction: column; gap: 0; left: 0; padding: 10px 22px 22px; position: absolute; top: 78px; width: 100%; }
  .nav-links.open { display: flex; }
  .nav-links a { border-top: 1px solid var(--line); font-size: 14px; padding: 16px 0; }
  .nav-cta { display: none; }
  .menu-button { background: none; border: 0; display: grid; gap: 6px; padding: 12px 0 12px 12px; }
  .menu-button span { background: var(--ink); display: block; height: 1px; width: 24px; }
  .hero { min-height: auto; padding-top: 145px; }
  .hero-stage { height: 590px; }
  .drift-card { left: 5%; top: 115px; }
  .system-card { left: auto; right: 3%; top: 70px; transform: rotate(2deg); }
  .agent-card { left: 27%; right: auto; top: 385px; width: 340px; }
  .section-intro { grid-template-columns: 1fr; }
  .section-intro > p:last-child { max-width: 580px; }
  .system-demo { grid-template-columns: 50px 1fr; }
  .system-inspector { display: none; }
  .hypothesis { grid-template-columns: 1fr; }
  .hypothesis-copy { border-left: 0; border-top: 1px solid rgba(93,42,26,.2); padding-left: 0; padding-top: 34px; }
  .deliverable-grid { grid-template-columns: 1fr 1fr; }
  .deliverable-card:last-child { grid-column: 1/-1; }
  .process-grid { gap: 70px; grid-template-columns: 1fr; }
  .section-intro.compact { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: 1fr; }
  .pilot-bottom { align-items: start; grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .nav { height: 70px; }
  .nav-links { top: 70px; }
  .brand { font-size: 19px; }
  .hero { padding-bottom: 70px; padding-top: 125px; }
  .hero h1 { font-size: clamp(50px, 15vw, 70px); }
  .hero-lede { font-size: 16px; }
  .hero-actions { align-items: center; flex-direction: column; gap: 20px; }
  .hero-stage { height: 650px; margin-top: 32px; }
  .hero-stage::before { inset-inline: -10%; }
  .drift-card { left: 0; top: 42px; width: 90%; }
  .system-card { right: 0; top: 270px; width: 88%; }
  .agent-card { left: 1%; top: 532px; width: 90%; }
  .stage-caption { display: none; }
  .section-intro h2 { font-size: 52px; }
  .system-demo { grid-template-columns: 1fr; height: 490px; }
  .system-sidebar { display: none; }
  .canvas-top { padding-inline: 16px; }
  .canvas-body { padding: 34px 18px; }
  .canvas-title h3 { font-size: 35px; }
  .component-line { grid-template-columns: auto 1fr; }
  .component-line code { display: none; }
  .flow { grid-template-columns: 1fr; }
  .flow > span { transform: rotate(90deg); }
  .hypothesis { border-radius: 0; margin-inline: -22px; padding-inline: 22px; }
  .hypothesis h2 { font-size: 44px; }
  .measure-list { grid-template-columns: 1fr; }
  .deliverable-grid { grid-template-columns: 1fr; }
  .deliverable-card:last-child { grid-column: auto; }
  .deliverable-card { min-height: 500px; }
  .process-list li { grid-template-columns: 36px 1fr auto; }
  .proof-feature, .experience-card { min-height: 350px; }
  .pilot { padding-inline: 0; padding-bottom: 0; }
  .pilot-card { border-inline: 0; border-radius: 0; }
  .pilot-top { align-items: flex-start; flex-direction: column; gap: 24px; }
  .availability i { width: 24px; }
  .pilot h2 { font-size: 58px; margin: 58px 0; }
  .pilot-bottom > div { align-items: flex-start; flex-direction: column; }
  .footer { align-items: flex-start; flex-direction: column; gap: 28px; padding-bottom: 42px; padding-top: 42px; }
  .footer > div { flex-direction: column; gap: 10px; }
  .video-hero-title { padding-inline: 5%; }
  .video-hero-title h1 { font-size: clamp(38px,13vw,62px); }
  .video-hero-signature { bottom: 10px; font-size: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}